Energy Sources and Transfer of Energy – Online MCQs Test – Physics 9th

1. Which one of the following has no unit?

2. The S.I unit of energy is:

3. Water stored in a dam is an example of:

4. Fossil fuels have stored:

5. Efficiency is :

6. Coal, gas and oil are all examples of _________.

7. The amount of energy transferred per unit time is called as:

8. A body of mass 1kg is lifted through a height of 1m. The energy possessed in the body will be _________. (consider g = 10ms^-2)

9. Unit of power is:

10. This kind of energy is stored in the Earth as its natural heat.

11. The ratio of output to input is called

12. The rate of doing work is known as:

13. If force of 6N displaces an object 2m in the direction of force, then work done will be __________.

14. Which is the renewable source of energy

15. ____________ is not a renewable source of energy.

16. Work done per unit time is called __________.

17. When a force makes something move, in Physics, it is called:

18. Mathematically, kinetic energy is represented by:

19. joule / sec __________

20. If a machine performs 20J of work in 10sec then its power is ____________.